/*
 *  Copyright 2011 yura.
 *
 *  Licensed under the Apache License, Version 2.0 (the "License");
 *  you may not use this file except in compliance with the License.
 *  You may obtain a copy of the License at
 *
 *       http://www.apache.org/licenses/LICENSE-2.0
 *
 *  Unless required by applicable law or agreed to in writing, software
 *  distributed under the License is distributed on an "AS IS" BASIS,
 *  WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 *  See the License for the specific language governing permissions and
 *  limitations under the License.
 *  under the License.
 */

package org.opu.vcforms.transform_t2d;

import java.util.NoSuchElementException;

/**
 *  Process transformation from one data to another
 * @param <K> from which the transformation
 * @param <V> during that transform
 * @author yura
 */
public interface Processor<K, V> {

    /**
     *  Transform V to K
     * @param v input data
     * @return processed data
     * @throws UnsupportedOperationException if problem with configuration
     * of transforming element.
     * @throws IllegalArgumentException if any problems with getting data.
     * @throws If some iteration in some content has no more elements, but
     * template asked for it. Usuali it's wrong call of 'next' in vars.
     */
    public K transform(V v) throws UnsupportedOperationException,
            IllegalArgumentException, NoSuchElementException;
}
